Seiko Cal. 3840 - 180

The Seiko 3840-180 represents an important milestone in Seiko's 1971 lineup. Powered by the 3840 caliber with 26j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-603c7e818985]

Also known as: Turtle, Navigator

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1971

Related Models

• Seiko 6671-192
• Seiko 6624-574
• Seiko 7128-547
• Seiko 0743-819
• Seiko 6183-579
• Seiko 5271-382
• Seiko 5621-882
• Seiko 7075-485
• Seiko 6136-771
• Seiko 7150-481
• Seiko 0720-811
• Seiko 6310-575