Seiko Cal. 6399 - 860

The 6399-860 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-751acd33a08e]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1991

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