Seiko Cal. 4448 - 609

The Seiko 4448-609 represents an important milestone in Seiko's 1981 lineup. Powered by the 4448 caliber with 23j jewels beating at 28,800 bph, it delivers a 71 hours power reserve. [seikata-wm-9969adb2b671]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1981

Related Models

• Seiko 4589-108
• Seiko 7082-570
• Seiko 6399-486
• Seiko 5659-375
• Seiko 3816-778
• Seiko 5624-646
• Seiko 6213-179
• Seiko 6212-992
• Seiko 6120-990
• Seiko 4510-824
• Seiko 4422-406
• Seiko 6383-374