Seiko Cal. 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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