Seiko Cal. 3813 - 391

This Automatic model from 1970 features a 42mm Stainless Steel case. It features a White dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-7cf8e4b8ac91]

Also known as: Monster, Panda

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.7mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

White

Jewels

34j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1970

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