Seiko Cal. 3842 - 437

The 3842-437 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3842 caliber with 17j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-696c7d77faae]

Also known as: Sumo, Helmet

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

42mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1992

Related Models

• Seiko 6379-323
• Seiko 6158-939
• Seiko 6192-817
• Seiko 6377-170
• Seiko 7174-291
• Seiko 5634-291
• Seiko 6117-958
• Seiko 7019-600
• Seiko 4569-181
• Seiko 5248-933
• Seiko 0742-339
• Seiko 7179-139