Seiko Cal. 6187 - 634

The Seiko 6187-634 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-07cea7d0d885]

Also known as: Tuna, Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1971

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