Seiko Cal. 6636 - 137

Seiko 6636-137

This Automatic model from 1973 features a 34mm Titanium case. The Coin-Edge bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-110a4641bb3f]

Also known as: Monster, Navigator

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
34mm
Case Thickness
10.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
160m
Dial Color
Burgundy
Jewels
31j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1973

Related Models

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