Seiko Cal. 3816 - 413

This Hand-Winding model from 1971 features a 35mm Two-Tone case. It features a Navy dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-d903958ae8f5]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1971

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