Seiko Cal. 5671 - 584

The Seiko 5671-584 represents an important milestone in Seiko's 1987 lineup. Powered by the 5671 caliber with 19j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-a565be12ea1c]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

19j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1987

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