Seiko Cal. 4445 - 390

The 4445-390 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4445 caliber with 32j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-57b9de6030f0]

Also known as: Samurai, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1998

Related Models

• Seiko 4422-959
• Seiko 0744-630
• Seiko 6253-104
• Seiko 4514-269
• Seiko 6645-483
• Seiko 6262-129
• Seiko 3810-749
• Seiko 0740-922
• Seiko 4569-777
• Seiko 5691-166
• Seiko 5217-564
• Seiko 6190-471