Seiko Cal. 6638 - 562

Seiko 6638-562

This Hand-Winding model from 1980 features a 40mm Stainless Steel case. Powered by the 6638 caliber with 36j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-18165e82d759]

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
40mm
Case Thickness
9.8mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
36j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1980

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seikata-wm-18165e82d759