Seiko Cal. 4486 - 686

The Seiko 4486-686 represents an important milestone in Seiko's 1991 lineup. Powered by the 4486 caliber with 18j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-2e9de5cab5a5]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1991

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