Seiko Cal. 4578 - 203

The 4578-203 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 4578 caliber with 19j jewels beating at 28,800 bph, it delivers a 70 hours power reserve. [seikata-wm-227991badcd8]

Also known as: Helmet, Sea Horse

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1984

Related Models

• Seiko 0714-323
• Seiko 6390-280
• Seiko 5637-288
• Seiko 6636-455
• Seiko 6174-415
• Seiko 7191-325
• Seiko 7165-216
• Seiko 5287-950
• Seiko 0722-960
• Seiko 6136-294
• Seiko 5276-161
• Seiko 7090-697