Seiko Cal. 4445 - 391

The 4445-391 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4445 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-a9b182038b51]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1966

Related Models

• Seiko 0762-480
• Seiko 6164-194
• Seiko 7148-236
• Seiko 6252-909
• Seiko 7115-393
• Seiko 6643-786
• Seiko 6347-804
• Seiko 4584-445
• Seiko 7039-261
• Seiko 4548-879
• Seiko 6636-208
• Seiko 4521-487