Seiko Cal. 4437 - 639

Seiko 4437-639

This Quartz model from 1974 features a 35mm Two-Tone case. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-157792cbbced]

Also known as: Pogue, Helmet

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
35mm
Case Thickness
11.0mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Burgundy
Jewels
28j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1974

Related Models

seikata-wm-157792cbbced