Seiko Cal. 3857 - 751

Seiko 3857-751

The 3857-751 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3857 caliber with 31j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-bf0fe544747f]

Also known as: Bullhead, Helmet

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
15.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1989

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