Seiko Cal. 6645 - 764

Seiko 6645-764

This Spring Drive model from 1994 features a 39mm Titanium case. Powered by the 6645 caliber with 19j jewels beating at 21,600 bph, it delivers a 38 hours power reserve. [seikata-wm-58cc3b9caa07]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
10.2mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1994

Related Models

seikata-wm-58cc3b9caa07