Seiko Cal. 3890 - 704

The Seiko 3890-704 represents an important milestone in Seiko's 1981 lineup. It features a Black dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-b8ab5c11f41c]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Black

Jewels

20j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1981

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