Seiko Cal. 6645 - 764

Seiko 6645-764

This Quartz model from 1965 features a 44mm PVD Black case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-19940a8c5fd0]

Also known as: Helmet, Sea Horse

Specifications

Movement
Quartz
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.1mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Burgundy
Jewels
34j
Frequency
28,800 bph
Power Reserve
45 hours
Year
1965

Related Models

seikata-wm-19940a8c5fd0