A faux milspec 6309 revisited: Seiko 6309-8010 from 1976 and 1977
One of my longest-lived watches is a grab ‘n’ go beater, a bastardised aggregation of disconnected parts that came together …
Category Archives: Seiko
Lift angle: Seiko Business-A 8346A and Bell-Matic 4006A
If you have ever used a timegrapher to measure the timing of a mechanical watch, you will have come across …
A Seiko Champion 850 Alpinist J13079 from May 1963
In 1959 Seiko released the Seiko Laurel Alpinist, a recreational sports watch designed specifically to meet the needs of Japanese …
Perturbations and the act of observation: A Seiko 6139-8040 from November 1974
In classical physics, a foundational principle is that it is possible to assign precise values simultaneously to all physical properties …
A little light relief: a self-build 62MAS/Pelagos 200m diver’s watch
You know, I do realise that this thing here, this documentation of activity spanning the past 14 years, skirts the …
Changing the battery in a Grand Seiko SBGV009 (revisited)
In 2014, I bought a Grand Seiko SBGV009, part of the 50th Anniversary Historic Collection released that year, and an …
The end of the beginning: The Grand Seiko 4520-8000
The emergence of Grand Seiko as a high-end brand with staying-power took some time to resolve convincingly: four years passed …
An homage to a modified Seiko 6105
In common with many amateur watchsmiths, my early experiences with engine room interventions were largely concerned with revivification and modification …
A ghost bezel Seiko Navigator Timer 6117-8000 from 1969
Occasionally I ruminate over what combination of features might contribute to rendering the perfect watch. This is, of course, a …
Origins of the Seikomatic: A 30 jewel Seikomatic 15031D from January 1963
Seiko’s first wholly in-house automatic movement was the Gyro Marvel, developed in 1959 as an evolution of the Marvel/Laurel hand-wind …
Recent YouTubery: 62MAS restomodding, KS Hi-Beatery and Grand Seiko ASMR
Following a rather extended break from the YouTube platform, I seem to be settling into a more comfortable, and importantly, …
Adventures in Amateur Watch Fettling 