Seiko Cal. 3821 - 183

This Hand-Winding model from 1966 features a 37mm Two-Tone case. It features a Champagne dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-d948f4bbd32d]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Champagne

Jewels

35j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1966

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