Seiko Cal. 4578 - 741

Seiko 4578-741

The Seiko 4578-741 represents an important milestone in Seiko's 1978 lineup. Powered by the 4578 caliber with 18j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-3f73b810b24a]

Also known as: Sea Horse

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
40mm
Case Thickness
13.9mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
50m
Dial Color
Champagne
Jewels
18j
Frequency
21,600 bph
Power Reserve
70 hours
Year
1978

Related Models

seikata-wm-3f73b810b24a