Seiko Cal. 3851 - 685

The Seiko 3851-685 represents an important milestone in Seiko's 1992 lineup. Powered by the 3851 caliber with 30j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-bc9765622b38]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1992

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