Seiko Cal. 7140 - 607

The Seiko 7140-607 represents an important milestone in Seiko's 1987 lineup. With its 21mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-f62a45877b17]

Also known as: Sumo, Silverwave

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

25j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1987

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