Seiko Cal. 4540 - 360

This Hand-Winding model from 1976 features a 42mm Stainless Steel case. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-4d59b55387ea]

Also known as: UFO, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

Related Models

• Seiko 6636-310
• Seiko 0799-199
• Seiko 6233-339
• Seiko 6649-175
• Seiko 5225-701
• Seiko 4510-574
• Seiko 7113-374
• Seiko 6642-294
• Seiko 4556-608
• Seiko 6616-455
• Seiko 4459-334
• Seiko 5233-403