Seiko Cal. 5640 - 155

Seiko 5640-155

The 5640-155 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 5640 caliber with 26j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-cad4f04854c4]

Also known as: Sea Horse

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
34mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
120m
Dial Color
Champagne
Jewels
26j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1984

Related Models

seikata-wm-cad4f04854c4