Seiko Cal. 4427 - 689

Seiko 4427-689

The Seiko 4427-689 represents an important milestone in Seiko's 1974 lineup. Powered by the 4427 caliber with 36j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-024c04a290ca]

Also known as: Sumo, Sea Horse

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
36mm
Case Thickness
13.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
200m
Dial Color
White
Jewels
36j
Frequency
36,000 bph
Power Reserve
46 hours
Year
1974

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