Seiko Cal. 3899 - 813

The Seiko 3899-813 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-50c87aba776f]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1970

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