Seiko Cal. 6636 - 905

Seiko 6636-905

This Automatic model from 1971 features a 39mm Gold-Plated case. The Coin-Edge bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-e47f52f7e8cb]

Also known as: Helmet, Sportsmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
39mm
Case Thickness
15.6mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
120m
Dial Color
Green
Jewels
28j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1971

Related Models

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