Seiko Cal. 3899 - 145

The 3899-145 is a sought-after Spring Drive piece from Seiko's golden era. With its 18mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-456ad84184c0]

Also known as: Sportsmatic, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

10.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1983

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