Seiko Cal. 6312 - 289

The Seiko 6312-289 represents an important milestone in Seiko's 1991 lineup. With its 20mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-e146d74b884c]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1991

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