Seiko Cal. 6633 - 121

The Seiko 6633-121 represents an important milestone in Seiko's 1989 lineup. Powered by the 6633 caliber with 29j jewels beating at 21,600 bph, it delivers a 58 hours power reserve. [seikata-wm-a00ebb5b8b94]

Also known as: Monster, Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

29j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1989

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