Seiko Cal. 6646 - 292

Seiko 6646-292

This Spring Drive model from 1966 features a 40mm Hardlex-Coated Steel case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-b058f2af8ae5]

Also known as: Silverwave, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.8mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
30m
Dial Color
Navy
Jewels
22j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1966

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