Seiko Cal. 5631 - 651

Seiko 5631-651

This Hand-Winding model from 1970 features a 42mm Two-Tone case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-789460c1c539]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
42mm
Case Thickness
12.1mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Silver
Jewels
35j
Frequency
28,800 bph
Power Reserve
67 hours
Year
1970

Related Models

seikata-wm-789460c1c539