Seiko Cal. 5644 - 133

The Seiko 5644-133 represents an important milestone in Seiko's 1998 lineup. Powered by the 5644 caliber with 24j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-2a404e1b3a6e]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1998

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