Seiko Cal. 7139 - 520

The Seiko 7139-520 represents an important milestone in Seiko's 1988 lineup. It features a White dial protected by a Acrylic crystal and offers 170m of water resistance. [seikata-wm-55031cb028b3]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1988

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