Seiko Cal. 6657 - 250

Seiko 6657-250

The 6657-250 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7bfcc091660c]

Also known as: Silverwave

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
11.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
49 hours
Year
1966

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