Seiko Cal. 5642 - 178

Released in 1991, the Cal. 5642 with design code 178 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-c0eb08ab4c02]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1991

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