Seiko Cal. 6398 - 583

This Quartz model from 1966 features a 35mm PVD Black case. Powered by the 6398 caliber with 31j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-28334ba40784]

Also known as: Monster, Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1966

Related Models

• Seiko 5693-243
• Seiko 6345-223
• Seiko 7093-799
• Seiko 4474-822
• Seiko 6143-873
• Seiko 5293-220
• Seiko 7015-238
• Seiko 6221-310
• Seiko 4488-622
• Seiko 6111-927
• Seiko 5236-785
• Seiko 0737-208