Seiko Cal. 3888 - 728

The Seiko 3888-728 represents an important milestone in Seiko's 1966 lineup. With its 18mm lug width and 10.2mm profile, it sits comfortably on most wrists. [seikata-wm-54e0e87c01cb]

Also known as: UFO, Baby Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

10.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1966

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