Seiko Cal. 3831 - 319

This Automatic model from 1967 features a 45mm Two-Tone case. It features a White dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-e43546d3caf8]

Also known as: Bellmatic, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1967

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