Seiko Cal. 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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