Seiko Cal. 6635 - 417

Seiko 6635-417

The Seiko 6635-417 represents an important milestone in Seiko's 1969 lineup. The Fixed bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-c43c39235d86]

Also known as: Monster, Helmet

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
11.3mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
130m
Dial Color
Black
Jewels
22j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1969

Related Models

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