Seiko Cal. 7140 - 840

The Seiko 7140-840 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-d6f5db5b1988]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1985

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