Seiko Cal. 7031 - 553

Seiko 7031-553

The Seiko 7031-553 represents an important milestone in Seiko's 1981 lineup. Powered by the 7031 caliber with 34j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-5d438d617625]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
44mm
Case Thickness
15.7mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
100m
Dial Color
Burgundy
Jewels
34j
Frequency
28,800 bph
Power Reserve
63 hours
Year
1981

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seikata-wm-5d438d617625