Seiko Cal. 5690 - 577

Seiko 5690-577

The Seiko 5690-577 represents an important milestone in Seiko's 1977 lineup. Powered by the 5690 caliber with 19j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-36d04673fb34]

Also known as: Turtle, Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
44mm
Case Thickness
8.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
190m
Dial Color
Black
Jewels
19j
Frequency
21,600 bph
Power Reserve
56 hours
Year
1977

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