Seiko Cal. 6140 - 720

The Seiko 6140-720 represents an important milestone in Seiko's 1989 lineup. It features a Black dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-9e09a578e1ff]

Also known as: Monster, Bellmatic

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

35j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1989

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