Seiko Cal. 3863 - 705

This Hand-Winding model from 1968 features a 37mm Hardlex-Coated Steel case. With its 20mm lug width and 11.6mm profile, it sits comfortably on most wrists. [seikata-wm-9cf4a4f7b448]

Also known as: Bellmatic, World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Burgundy

Jewels

29j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1968

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