Seiko Cal. 6644 - 798

The 6644-798 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6644 caliber with 34j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-d046c0d6b960]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1991

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