Seiko Cal. 5271 - 307

The Seiko 5271-307 represents an important milestone in Seiko's 1969 lineup. Powered by the 5271 caliber with 28j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-cef66d467253]

Also known as: Sumo, Shogun

Specifications

Movement

Solar

Case Material

Titanium

Case Width

43mm

Case Thickness

13.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1969

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