Seiko Cal. 3899 - 428

The Seiko 3899-428 represents an important milestone in Seiko's 1980 lineup. It features a Black dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-37ad8b775c16]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

8.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1980

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