Seiko Cal. 7171 - 157

The Seiko 7171-157 represents an important milestone in Seiko's 1969 lineup. It features a Black dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-ae0491436f06]

Also known as: Monster, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

13.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Black

Jewels

33j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1969

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