Seiko Cal. 5631 - 813

The 5631-813 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-de97825cba5b]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Green

Jewels

32j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1996

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