Seiko Cal. 4487 - 506

The Seiko 4487-506 represents an important milestone in Seiko's 1984 lineup. Powered by the 4487 caliber with 17j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-e9365182194d]

Also known as: Samurai, Helmet

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1984

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