Seiko Cal. 3889 - 937

The 3889-937 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3889 caliber with 32j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-eb79ff4a7504]

Also known as: Bullhead, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

41mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1968

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