Seiko Cal. 4578 - 605

This Spring Drive model from 1973 features a 38mm Titanium case. Powered by the 4578 caliber with 18j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-39a6bd1bba50]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

38mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

18j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1973

Related Models

• Seiko 5235-282
• Seiko 5233-519
• Seiko 6627-200
• Seiko 6255-578
• Seiko 5240-360
• Seiko 6144-140
• Seiko 7129-126
• Seiko 5275-283
• Seiko 7148-209
• Seiko 6189-205
• Seiko 5665-116
• Seiko 4454-553