Seiko Cal. 6271 - 748

The Seiko 6271-748 represents an important milestone in Seiko's 1976 lineup. Powered by the 6271 caliber with 31j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-649da5ce0d94]

Also known as: Bullhead, World Timer

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

41mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

31j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1976

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