Seiko Cal. 4594 - 375

This Hand-Winding model from 1966 features a 42mm Stainless Steel case. Powered by the 4594 caliber with 27j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-c33e56236651]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

13.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

Related Models

• Seiko 6661-188
• Seiko 4492-508
• Seiko 5299-482
• Seiko 6671-515
• Seiko 4592-710
• Seiko 7051-681
• Seiko 6637-398
• Seiko 5217-436
• Seiko 3856-683
• Seiko 6338-179
• Seiko 5636-851
• Seiko 7183-896