Seiko Cal. 3851 - 835

Seiko 3851-835

The 3851-835 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3851 caliber with 27j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-013eb58f7a8a]

Also known as: Monster, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
10.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
White
Jewels
27j
Frequency
28,800 bph
Power Reserve
64 hours
Year
1966

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