Seiko Cal. 6633 - 100

The 6633-100 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6633 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-7a9601bce0bf]

Also known as: Monster, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

White

Jewels

26j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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