Seiko Cal. 5660 - 537

Seiko 5660-537

This Hand-Winding model from 1975 features a 40mm Two-Tone case. With its 21mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-7182dcc05b42]

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
14.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
41 hours
Year
1975

Related Models

seikata-wm-7182dcc05b42