Seiko Cal. 5631 - 983

The 5631-983 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-26cb6076ace7]

Also known as: Goldfeather, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Navy

Jewels

22j

Frequency

36,000 bph

Power Reserve

67 hours

Year

1979

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