Seiko Cal. 7137 - 858

The 7137-858 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 70m of water resistance. [seikata-wm-57984d26e242]

Also known as: Bullhead, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1986

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