Seiko Cal. 3857 - 991

The Seiko 3857-991 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-7f7c5831c7e0]

Also known as: Emperor

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Burgundy

Jewels

34j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1978

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