Seiko Cal. 4557 - 257

Seiko 4557-257

This Automatic model from 1992 features a 35mm Titanium case. Powered by the 4557 caliber with 30j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-c7a67898a0f8]

Also known as: Monster, Baby Tuna

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
35mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Cream
Jewels
30j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1992

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