Seiko Cal. 5635 - 644

Seiko 5635-644

This Hand-Winding model from 1966 features a 42mm Two-Tone case. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3a42245fe03a]

Also known as: Sumo, Navigator

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
42mm
Case Thickness
12.4mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
19j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1966

Related Models

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