Seiko Cal. 3840 - 134

This Automatic model from 1977 features a 42mm Stainless Steel case. Powered by the 3840 caliber with 25j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-7ee8240f3f5d]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1977

Related Models

• Seiko 3851-675
• Seiko 3892-214
• Seiko 0790-319
• Seiko 7159-832
• Seiko 5690-586
• Seiko 0720-668
• Seiko 4477-486
• Seiko 7151-878
• Seiko 3877-181
• Seiko 5281-279
• Seiko 3865-358
• Seiko 6241-704