Seiko Cal. 7140 - 665

The Seiko 7140-665 represents an important milestone in Seiko's 1989 lineup. The Inner Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-813ac4ad9030]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1989

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