Seiko Cal. 4440 - 656

Seiko 4440-656

The Seiko 4440-656 represents an important milestone in Seiko's 1978 lineup. Powered by the 4440 caliber with 28j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-e8f87afea514]

Also known as: Monster, Sportsmatic

Specifications

Movement
Solar
Case Material
Titanium
Case Width
44mm
Case Thickness
13.4mm
Lug Width
19mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Cream
Jewels
28j
Frequency
28,800 bph
Power Reserve
49 hours
Year
1978

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