Seiko Cal. 3889 - 728

The Seiko 3889-728 represents an important milestone in Seiko's 1966 lineup. It features a Navy dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-be24f8185356]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1966

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