Seiko Cal. 5681 - 433

Seiko 5681-433

The Seiko 5681-433 represents an important milestone in Seiko's 1968 lineup. Powered by the 5681 caliber with 27j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-05592f12f989]

Also known as: Silverwave, Sea Horse

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
39mm
Case Thickness
11.1mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
120m
Dial Color
Black
Jewels
27j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1968

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