Seiko Cal. 3856 - 172

The Seiko 3856-172 represents an important milestone in Seiko's 1976 lineup. Powered by the 3856 caliber with 34j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-a20d98e055c8]

Also known as: Crown, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1976

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