Seiko Cal. 7180 - 403

Seiko 7180-403

The Seiko 7180-403 represents an important milestone in Seiko's 1966 lineup. Powered by the 7180 caliber with 27j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-3b4cefd9e88a]

Also known as: Tuna

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
41mm
Case Thickness
12.7mm
Lug Width
20mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
80m
Dial Color
Green
Jewels
27j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1966

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