Seiko Cal. 6657 - 136

Seiko 6657-136

This Hand-Winding model from 1982 features a 45mm Hardlex-Coated Steel case. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-cb147fc6c980]

Also known as: Turtle, Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
13.1mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Green
Jewels
23j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1982

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seikata-wm-cb147fc6c980