Seiko Cal. 3899 - 812

The Seiko 3899-812 represents an important milestone in Seiko's 1986 lineup. With its 21mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-008f1c154651]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

23j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1986

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