Seiko Cal. 4443 - 131

Seiko 4443-131

The Seiko 4443-131 represents an important milestone in Seiko's 1966 lineup. Powered by the 4443 caliber with 25j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-daccf2ae6164]

Also known as: Baby Tuna, Arnie

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
10.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
200m
Dial Color
Silver
Jewels
25j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1966

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