Seiko Cal. 7031 - 507

Seiko 7031-507

The Seiko 7031-507 represents an important milestone in Seiko's 1973 lineup. Powered by the 7031 caliber with 19j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-32b8cb92843f]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
44mm
Case Thickness
13.2mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
70m
Dial Color
Silver
Jewels
19j
Frequency
28,800 bph
Power Reserve
59 hours
Year
1973

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