Seiko Cal. 6631 - 272

The Seiko 6631-272 represents an important milestone in Seiko's 1979 lineup. It features a Cream dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-c343620eed6a]

Also known as: Turtle, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1979

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