Seiko Cal. 7155 - 720

Seiko 7155-720

The 7155-720 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 7155 caliber with 23j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-6e7df5860c4b]

Also known as: Silverwave, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Green
Jewels
23j
Frequency
28,800 bph
Power Reserve
47 hours
Year
1978

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