Seiko Cal. 4531 - 448

The 4531-448 is a sought-after Hand-Winding piece from Seiko's golden era. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-7632e97a9410]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

Related Models

• Seiko 5216-196
• Seiko 4579-711
• Seiko 4513-305
• Seiko 6175-302
• Seiko 3853-463
• Seiko 6683-733
• Seiko 0724-438
• Seiko 6136-381
• Seiko 6295-478
• Seiko 7061-617
• Seiko 0726-130
• Seiko 6313-419