Seiko Cal. 6638 - 668

Seiko 6638-668

This Solar model from 1993 features a 37mm Stainless Steel case. Powered by the 6638 caliber with 19j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-0d5e830dd7d3]

Specifications

Movement
Solar
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
13.7mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
White
Jewels
19j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1993

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