Seiko Cal. 3813 - 977

The 3813-977 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-15766071c8cd]

Also known as: Shogun, Rally

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1986

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