Manufacturer Seiko Caliber Family 4R Type Mechanical, automatic Lignes 12”’ Diameter 27.4mm Jewels (see below) Vibrations Per Hour 21,600 vph...
4R36
Manufacturer Seiko Caliber Number 4R36, 4R36A In-House? Yes Movement Type Automatic, self-winding mechanical Diameter 27.4mm Casing Diameter 27mm Thickness 5.32mm...
Manufacturer Seiko Time Corp. Caliber Number 7S26 Replaced By 4R36 Movement Type Automatic, self-winding mechanical In-House? Yes Diameter 27.4mm Casing...
network of watch sites
Recent Comments
My 16 year old SARB059 (Alpinist) has a 6R15B movement. It has been sitting in…
L2.628.4 Master Collection with L 888.2 has open caseback. This was one of many reasons…
"If you have a 25 jewels ETA based GL224, please comment below if the caliber…
I'm not technical enough to give an informed opinion about Omegas co-axial implementation but I…
Seems that 0950 is the new version Maybe same situation with 9011 and 9051
Cap jewels "down" the train of wheels from the balance is always an upgrade in…
What does AC mean on the battery cover? Thank you