Seiko Cal. 3889 - 378

Seiko 3889-378

This Solar model from 1989 features a 44mm Hardlex-Coated Steel case. Powered by the 3889 caliber with 35j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-61df0b35f406]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
44mm
Case Thickness
11.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
160m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1989

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