Seiko Cal. 7140 - 987

The 7140-987 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-4768fe42ad8c]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1984

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