Seiko Cal. 5257 - 887

Seiko 5257-887

The 5257-887 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5257 caliber with 31j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-0b00dea3399d]

Also known as: Monster

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
11.6mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
130m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
65 hours
Year
1971

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