Seiko Cal. 5687 - 442

The Seiko 5687-442 represents an important milestone in Seiko's 1988 lineup. It features a Silver dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-812386a59111]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

35mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Silver

Jewels

32j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1988

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