Seiko Cal. 3857 - 812

The Seiko 3857-812 represents an important milestone in Seiko's 1974 lineup. Powered by the 3857 caliber with 26j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-d3e410468706]

Also known as: Turtle

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1974

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