Seiko Cal. 3820 - 192

This Spring Drive model from 1971 features a 42mm Stainless Steel case. It features a White dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-543acf22d6c4]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

26j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1971

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