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Results for Spring Drive (9R65 / 9R86)

4,067 articles · 612 videos found · page 9 of 156

Dive into the Longines Legend Diver Black  Time+Tide
Longines Legend Diver Black  We’re Jul 17, 2019

Dive into the Longines Legend Diver Black 

We’re on record as being fans of the Longines Legend Diver Black - in fact, we like it so much we’re selling it in our shop. The attraction is immediate: if you just look at these photos, obviously apparent. It’s stealthy, sexy and very, very sharp.  In case you need a quick primer: 42mm, 300m … ContinuedThe post Dive into the Longines Legend Diver Black  appeared first on Time+Tide Watches.

Grand Seiko Introduces the Spring Drive SLGA009 “White Birch” SJX Watches
Grand Seiko Introduces Jan 17, 2022

Grand Seiko Introduces the Spring Drive SLGA009 “White Birch”

Though it was two years ago as the Grand Seiko’s flagship Spring Drive movement, the 9RA5 still feels new, simply because the latest-generation movement hasn’t found its way into many watches, save for a pair of limited editions. Now it finally makes it into a regular-production model, the Grand Seiko Spring Drive SLGA009 “White Birch”. The latest Spring Drive, like the mechanical SLGH005, is inspired by the tree of the same name that’s native to the area around Grand Seiko Studio Shizukuishi. Initial thoughts The SLGH009 “White Birch” clearly becomes the Grand Seiko’s showcase Spring Drive – it resembles the previous generation’s bestseller, the famous “Snowflake”, but is substantially upgraded in terms of features and finish. The combination of familiar styling and improved quality makes it attractive. Part of the appeal lies in the 9RA5 movement, which on the surface seems like a mere upgrade over the predecessor 9R65. But it is more than just the power reserve being increased to five days, and the new calibre boasts an entirely new architecture, including both a new gear train and integrated circuit for the Spring Drive regulator, as well as a better finishing. The other aspect of its appeal lies in the design, which has dubbed “Evolution 9”. As always is the case with Grand Seiko, Evolution 9 is inspired by vintage Grand Seiko models, but brings with it a sense of solidity and refinement, thanks to the flatter case, heftier bracelet, a...

Grand Seiko Unveils The New Evolution 9 Spring Drive U.F.A. Ushio 300 Divers Fratello
Grand Seiko Unveils Apr 13, 2026

Grand Seiko Unveils The New Evolution 9 Spring Drive U.F.A. Ushio 300 Divers

During Watches and Wonders 2025, Grand Seiko unveiled two Spring Drive models powered by a new Ultra Fine Accuracy (U.F.A.) caliber. This year, the Japanese watchmaker follows up on last year’s novelties with two Ushio 300 divers housing a new U.F.A. movement. On top of that, the brand finally granted enthusiasts’ wishes for a smaller […] Visit Grand Seiko Unveils The New Evolution 9 Spring Drive U.F.A. Ushio 300 Divers to read the full article.

Introducing: The Spring Drive-Powered Seiko Prospex LX GMT U.S. Special Edition SNR058 Fratello
Seiko Prospex LX GMT U.S Dec 18, 2025

Introducing: The Spring Drive-Powered Seiko Prospex LX GMT U.S. Special Edition SNR058

The first thing that popped up in my head when laying eyes on the Spring Drive-powered Seiko Prospex LX GMT U.S. Special Edition SNR058 was “Root Beer.” The colors, shapes, and vibe make me think of that famous GMT watch made by The Crown. It’s a good thing this watch is designed for the U.S. […] Visit Introducing: The Spring Drive-Powered Seiko Prospex LX GMT U.S. Special Edition SNR058 to read the full article.

The Power of Community: Expanding My Watch Family at the Brew Summer Popup Worn & Wound
Brew Summer Popup Whether you’re Sep 1, 2025

The Power of Community: Expanding My Watch Family at the Brew Summer Popup

Whether you’re a collector or working in the watch industry, the experience is never just about the watches themselves – it’s about the people you meet along the way and finding a sense of community. Not to sound dramatic, but when you do, it changes everything. There are so many subsets of the watch world, and discovering the people that align with you to nerd out, swap stories, and take wrist shots is what makes this hobby and this work fulfilling and, above all, fun.  First off, let’s get a little personal: a lot of people both within the industry and the community may not know I’ve been working in the watch sphere for 13 years. In that time, I’ve experienced firsthand that exclusivity is an inherent and at times more problematic part of horology and that there can be barriers to feeling a part of this incredible watch world, particularly as a woman.  For me, getting here – having opportunities for my voice to be heard on influential platforms like Worn & Wound that are vital to this industry and collector community – has been a slow burn. It took time for me to carve out my place in watches as a woman, as a millennial, and as a freelancer.  Early on, there were a few people who became the foundation of my watch community – people who didn’t care to measure my value by the number of outlets where you could find my byline or the number of watches in my personal collection. They saw my genuine curiosity and infatuation with timepieces and my abiliti...

Hands-On: The New Nivada Grenchen Chronosport Blue Fratello
Nivada Grenchen Chronosport Blue Spring started May 11, 2025

Hands-On: The New Nivada Grenchen Chronosport Blue

Spring started strong for Nivada. The Swiss watch brand released two new models in its Chronosport line, expanding it to five watches. We were lucky enough to try both the automatic and the mecaquartz versions. In this review, I’ll go hands-on with the former, namely, the Chronosport Blue. But before we get into that, let […] Visit Hands-On: The New Nivada Grenchen Chronosport Blue to read the full article.

Introducing: The Ulysse Nardin Diver Air Fratello
Ulysse Nardin Diver Air We’re used Apr 3, 2025

Introducing: The Ulysse Nardin Diver Air

We’re used to outlandish creations from Ulysse Nardin, but today’s Diver Air may be the most extreme yet. The brand set out to create the world’s lightest mechanical dive watch and has gloriously succeeded. Intriguingly, several collaborators were brought on board, including materials companies that normally work on automobiles. Ulysse Nardin takes me back to […] Visit Introducing: The Ulysse Nardin Diver Air to read the full article.

[VIDEO] Grand Seiko Redefines Accuracy – Again: Introducing the 9RB2 U.F.A. Spring Drive Caliber Worn & Wound
Grand Seiko Redefines Accuracy – Again Apr 1, 2025

[VIDEO] Grand Seiko Redefines Accuracy – Again: Introducing the 9RB2 U.F.A. Spring Drive Caliber

2022: the Kodo constant force tourbillon. 2023: the Tentagraph hi-beat mechanical chronograph. 2024: the 9SA4 manual wound, hi-beat, dual-impulse escapement caliber, and Kodo Daybreak. It’s easy to forget that Grand Seiko has brought the proverbial heat to Watches & Wonders every year since the fair started, unveiling something that one could call “revolutionary” for the brand, if on varying scales. Well, it’s looking like 2025 will continue the trend with the introduction of Spring Drive Caliber 9RB2, the first caliber with U.F.A., or Ultra Fine Accuracy, designation. Before proceeding, there are two important concepts to understand: Spring Drive and Grand Seiko’s history with acronyms (which, if you know, feel free to jump two paragraphs ahead). Starting with the former, the elevator pitch, which I will take from our article dedicated to the topic is “Spring Drive combines the best of mechanical watchmaking and the best of quartz timekeeping to create a state-of-the-art caliber that lacks the weaknesses inherent to both of these movements.” A bit deeper, Spring Drive movements use the energy stored in a traditional mainspring to drive their proprietary “Tri-synchro” regulator, which replaces the classic lever escapement. It consists of a glide wheel, the rate of which is controlled by an electromagnetic brake, and is essentially regulated by an integrated circuit with a quartz oscillator. The result is a mechanical movement with quartz-like accuracy and...