Seiko Cal. 3840 - 215

This Spring Drive model from 1988 features a 34mm Hardlex-Coated Steel case. Powered by the 3840 caliber with 20j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-6213ccb45f08]

Also known as: Shogun, Bullhead

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

20j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1988

Related Models

• Seiko 4438-471
• Seiko 7198-967
• Seiko 6139-634
• Seiko 5627-226
• Seiko 7182-560
• Seiko 4543-605
• Seiko 7064-856
• Seiko 6332-627
• Seiko 5299-938
• Seiko 5287-436
• Seiko 6241-197
• Seiko 3815-181