Seiko Cal. 4450 - 688

Seiko 4450-688

The 4450-688 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4450 caliber with 27j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-8ab05ac0ad2c]

Also known as: Turtle, Sumo

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
13.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1980

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seikata-wm-8ab05ac0ad2c