Seiko Cal. 4430 - 607

Seiko 4430-607

The Seiko 4430-607 represents an important milestone in Seiko's 1988 lineup. Powered by the 4430 caliber with 23j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-6cf68a7ba211]

Also known as: Sumo

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
44mm
Case Thickness
11.1mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
120m
Dial Color
Black
Jewels
23j
Frequency
36,000 bph
Power Reserve
49 hours
Year
1988

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