Seiko Cal. 3840 - 507

The Seiko 3840-507 represents an important milestone in Seiko's 1972 lineup. With its 19mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-8776d43514f2]

Also known as: Shogun, Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

43mm

Case Thickness

9.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

130m

Dial Color

Black

Jewels

25j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1972

Related Models

• Seiko 6251-198
• Seiko 7065-101
• Seiko 7021-314
• Seiko 7113-453
• Seiko 3864-402
• Seiko 6127-648
• Seiko 6395-496
• Seiko 5267-928
• Seiko 5616-233
• Seiko 4568-910
• Seiko 6158-795
• Seiko 4595-995