Seiko Cal. 7031 - 663

Seiko 7031-663

The Seiko 7031-663 represents an important milestone in Seiko's 1967 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7fa3bad369fd]

Also known as: Helmet, Sea Horse

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
37mm
Case Thickness
8.4mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Champagne
Jewels
19j
Frequency
28,800 bph
Power Reserve
68 hours
Year
1967

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