Seiko Cal. 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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