Seiko Cal. 7140 - 451

The Seiko 7140-451 represents an important milestone in Seiko's 1988 lineup. Powered by the 7140 caliber with 30j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-1eeb660ef738]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

44mm

Case Thickness

14.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1988

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