Seiko Cal. 3851 - 781

Seiko 3851-781

The 3851-781 is a sought-after Solar piece from Seiko's golden era. Powered by the 3851 caliber with 20j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-88e24b7f9b57]

Also known as: Samurai, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
14.0mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
White
Jewels
20j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1977

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