Seiko Cal. 4428 - 441

Seiko 4428-441

The Seiko 4428-441 represents an important milestone in Seiko's 1965 lineup. Powered by the 4428 caliber with 34j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-b11724719ccd]

Also known as: Turtle, Pogue

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
39mm
Case Thickness
12.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
34j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1965

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