Seiko Cal. 3817 - 688

This Spring Drive model from 1978 features a 44mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-442f7630e6b6]

Also known as: Rally, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1978

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