Seiko Cal. 3899 - 365

This Spring Drive model from 1974 features a 44mm Gold-Plated case. With its 20mm lug width and 15.2mm profile, it sits comfortably on most wrists. [seikata-wm-13b1372c2b17]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1974

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