Seiko Cal. 6657 - 421

Seiko 6657-421

This Spring Drive model from 1990 features a 38mm Stainless Steel case. The Coin-Edge bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-03eb73287ff1]

Also known as: Turtle, Sea Horse

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Silver
Jewels
24j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1990

Related Models

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