Seiko Cal. 3889 - 378

The 3889-378 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-7003cac69d73]

Also known as: Sumo, UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1996

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