Seiko Cal. 4518 - 390

This Spring Drive model from 1976 features a 40mm Titanium case. Powered by the 4518 caliber with 26j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-284c683ca917]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1976

Related Models

• Seiko 6184-301
• Seiko 7013-999
• Seiko 6673-309
• Seiko 4547-777
• Seiko 6163-941
• Seiko 4543-592
• Seiko 6212-384
• Seiko 4598-700
• Seiko 4471-464
• Seiko 6236-698
• Seiko 4554-372
• Seiko 6652-435