Seiko Cal. 6638 - 410

Seiko 6638-410

This Automatic model from 1972 features a 43mm Hardlex-Coated Steel case. Powered by the 6638 caliber with 24j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-2d78bcac1923]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
43mm
Case Thickness
10.3mm
Lug Width
22mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Navy
Jewels
24j
Frequency
21,600 bph
Power Reserve
58 hours
Year
1972

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seikata-wm-2d78bcac1923