Seiko Cal. 5257 - 350

Seiko 5257-350

The Seiko 5257-350 represents an important milestone in Seiko's 1978 lineup. Powered by the 5257 caliber with 36j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-edadef65200b]

Also known as: Sea Horse

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
40m
Dial Color
Champagne
Jewels
36j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1978

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seikata-wm-edadef65200b