Seiko Cal. 4550 - 193

The Seiko 4550-193 represents an important milestone in Seiko's 1972 lineup. Powered by the 4550 caliber with 18j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-3d7c548f1800]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1972

Related Models

• Seiko 7056-812
• Seiko 5251-310
• Seiko 6123-462
• Seiko 5698-594
• Seiko 5653-223
• Seiko 6683-367
• Seiko 3842-117
• Seiko 3827-401
• Seiko 3874-795
• Seiko 6662-803
• Seiko 0716-819
• Seiko 6681-990