Seiko Cal. 5271 - 904

The Seiko 5271-904 represents an important milestone in Seiko's 1991 lineup. Powered by the 5271 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-e5279bd47fee]

Also known as: Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1991

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