Seiko Cal. 7131 - 511

Seiko 7131-511

The Seiko 7131-511 represents an important milestone in Seiko's 1996 lineup. Powered by the 7131 caliber with 21j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-599f2cf2d563]

Also known as: Navigator, Arnie

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
39mm
Case Thickness
11.8mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
170m
Dial Color
Silver
Jewels
21j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1996

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seikata-wm-599f2cf2d563