Seiko Cal. 6631 - 905

The 6631-905 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-9f98072ea7de]

Also known as: Pogue, Crown

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

180m

Dial Color

Cream

Jewels

22j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1978

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