Seiko Cal. 4557 - 981

Seiko 4557-981

The 4557-981 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4557 caliber with 21j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-6020fd39e5ef]

Also known as: Turtle, Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
41mm
Case Thickness
14.9mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
160m
Dial Color
Champagne
Jewels
21j
Frequency
28,800 bph
Power Reserve
71 hours
Year
1966

Related Models

seikata-wm-6020fd39e5ef