Seiko Cal. 3899 - 720

The Seiko 3899-720 represents an important milestone in Seiko's 1991 lineup. It features a Silver dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-eb4dc6a5376d]

Also known as: Pogue, Bullhead

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1991

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