Seiko Cal. 4578 - 668

This Spring Drive model from 1966 features a 40mm Two-Tone case. Powered by the 4578 caliber with 23j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-86999e4d4f8e]

Also known as: Pogue, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

100m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1966

Related Models

• Seiko 6156-337
• Seiko 6623-663
• Seiko 4489-575
• Seiko 5283-122
• Seiko 5619-452
• Seiko 5685-588
• Seiko 5297-255
• Seiko 3838-798
• Seiko 6174-498
• Seiko 6180-572
• Seiko 5223-284
• Seiko 6346-885