Seiko Cal. 6657 - 581

Seiko 6657-581

This Automatic model from 1997 features a 36mm Stainless Steel case. Powered by the 6657 caliber with 35j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-0a04fdf6a352]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
90m
Dial Color
White
Jewels
35j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1997

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