Seiko Cal. 5661 - 610

Seiko 5661-610

This Hand-Winding model from 1978 features a 36mm Hardlex-Coated Steel case. With its 20mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-503800216d75]

Also known as: Crown, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
13.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
110m
Dial Color
Navy
Jewels
31j
Frequency
28,800 bph
Power Reserve
36 hours
Year
1978

Related Models

seikata-wm-503800216d75