Seiko Cal. 4552 - 927

The Seiko 4552-927 represents an important milestone in Seiko's 1978 lineup. Powered by the 4552 caliber with 32j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-27a0672816de]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1978

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