Seiko Cal. 6638 - 993

Seiko 6638-993

The 6638-993 is a sought-after Solar piece from Seiko's golden era. Powered by the 6638 caliber with 22j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-b9ab512e49a6]

Also known as: Arnie

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
10.5mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
170m
Dial Color
Blue Sunburst
Jewels
22j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1985

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seikata-wm-b9ab512e49a6