Seiko Cal. 3890 - 743

The 3890-743 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3890 caliber with 24j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-77974700411f]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

35mm

Case Thickness

8.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1969

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