Seiko Cal. 6171 - 278

The Seiko 6171-278 represents an important milestone in Seiko's 1976 lineup. Powered by the 6171 caliber with 28j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-75ff555ed7d8]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

38mm

Case Thickness

13.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Green

Jewels

28j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1976

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