Seiko Cal. 6390 - 370

The 6390-370 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6390 caliber with 32j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-5d72b5f2594b]

Also known as: Sportsmatic, World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Champagne

Jewels

32j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1993

Related Models

• Seiko 6192-703
• Seiko 7034-608
• Seiko 6234-787
• Seiko 5279-619
• Seiko 5680-363
• Seiko 4528-336
• Seiko 7124-927
• Seiko 6631-466
• Seiko 4511-257
• Seiko 4446-554
• Seiko 0771-951
• Seiko 6179-336