Seiko Cal. 3857 - 430

The Seiko 3857-430 represents an important milestone in Seiko's 1978 lineup. Powered by the 3857 caliber with 24j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-69278b7d8392]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1978

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