Seiko Cal. 6399 - 487

This Hand-Winding model from 1997 features a 39mm Stainless Steel case. Powered by the 6399 caliber with 23j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-1bd5b62ded55]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1997

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