Seiko Cal. 5631 - 690

The 5631-690 is a sought-after Solar piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-613a654f3696]

Also known as: Sea Horse, Emperor

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

60m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1974

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