Seiko Cal. 3889 - 644

The 3889-644 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-4749f80292e4]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

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