Seiko Cal. 6657 - 874

Seiko 6657-874

This Quartz model from 1994 features a 43mm Hardlex-Coated Steel case. Powered by the 6657 caliber with 31j jewels beating at 21,600 bph, it delivers a 52 hours power reserve. [seikata-wm-5acdf080b22c]

Also known as: Turtle, Sumo

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
11.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
180m
Dial Color
Green
Jewels
31j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1994

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