Seiko Cal. 3890 - 728

Seiko 3890-728

The 3890-728 is a sought-after Quartz piece from Seiko's golden era. The Fixed bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-15d6a4db9a2f]

Also known as: World Timer, Baby Tuna

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
160m
Dial Color
Champagne
Jewels
33j
Frequency
21,600 bph
Power Reserve
38 hours
Year
1990

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