Seiko Cal. 3899 - 305

This Hand-Winding model from 1967 features a 43mm Two-Tone case. With its 18mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-17decd516bdf]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Navy

Jewels

24j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1967

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