Seiko Cal. 5631 - 654

Seiko 5631-654

This Spring Drive model from 1985 features a 43mm Two-Tone case. The Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-055b2e818744]

Also known as: World Timer

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
43mm
Case Thickness
13.7mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
40m
Dial Color
Green
Jewels
29j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1985

Related Models

seikata-wm-055b2e818744