Seiko Cal. 0720 - 551

The Seiko 0720-551 represents an important milestone in Seiko's 1990 lineup. Powered by the 0720 caliber with 28j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-856b6a93f0c8]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

12.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

60m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1990

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