Seiko Cal. 5285 - 121

The Seiko 5285-121 represents an important milestone in Seiko's 1986 lineup. Powered by the 5285 caliber with 31j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-6fd3bab6c9a2]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

40mm

Case Thickness

14.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1986

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