Seiko Cal. 4552 - 140

The Seiko 4552-140 represents an important milestone in Seiko's 1973 lineup. Powered by the 4552 caliber with 31j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-8de12edb03eb]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1973

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