Seiko Cal. 5285 - 684

The Seiko 5285-684 represents an important milestone in Seiko's 1980 lineup. Powered by the 5285 caliber with 30j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-1b54a43c6458]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1980

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