Seiko Cal. 5631 - 983

The 5631-983 is a sought-after Solar piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-f4424faa82ec]

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1989

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