SBGJ017/019/021/023/024
Listing: SBJG017 | セイコーウオッチ
According to @Plus 9Time these are reissues of the 1980’s ‘Rotocall’ w…
Continue readingGP Laureato Fifty
Should this forum welcome Credor posts?
Credor joining W&W 2026 is a sign that the international profile will be further raised.
Should this forum actively wel…
Continue readingThe future of Spring Drive is thinner and hybrid
With the caveat that no single patent application indicates a future product, here are my prognostications on the future technological path of Spring Drive, with explanations based on both Seiko patent filings and my reading of the 2025 watch market.
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Continue readingSeiko patent application for GPS watch with TC
Seiko has applied for a US patent for a thermocompensated GPS watch.
This is denoted Fujisawa (2024), PDF atttached..
Her…
Continue readingCitizen cal. H147
I see only one mention of H147 in this forum. Anyone have one of these?
H147 powers the "world's thinnest* Eco-Drive radio-controlled watch" at 7.0 mm. This was as of Nov 2023:
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Continue readingNew details about the new SLGB001/003 casing
No GS with the 30 mm 9R65/9R15 is less than 39 mm in diameter. Yet the SLGB001/003 with a 30 mm 9RB2 achieves 37 mm.
How did they do that?
A Japanese-language article in webchronos.net offers an answer:
1) 9R6 required an anti-magnetic casing ring a…
Continue readingFashion website Jamais Vulgaire article on HAQ
JV is a francophone-centered fashion website, covering men's clothes, shoes and accessories including watches.
They offered up an English-language HAQ article on May 20:
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Continue readingSeiko Epson’s single-package TCXO circuit block
Seiko Epson’s cal. 9RA in 2020 marked the introduction of a single package or ‘chip’ that included an XO, IC and temperature sensor within a vacuum.
The chip in the 20 spy rated cal. 9RB2
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Continue readingSLGB001/003 date change speed
Now that SLGB001/003 have begun to arrive in owners hands, can anyone report on the date change speed of the cal. 9RB2?
The 9RA5 in the SLGA001 was found to have semi-instantenous date change. According to a comparison by @chief-diversity-officer:
9…
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