Seiko Cal. 5633 - 780

This Spring Drive model from 1971 features a 37mm Gold-Plated case. It features a Champagne dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-25c630ba659c]

Also known as: Goldfeather, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

9.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1971

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