Seiko Cal. 4449 - 638

The Seiko 4449-638 represents an important milestone in Seiko's 1984 lineup. Powered by the 4449 caliber with 21j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-ddbcb49656f6]

Also known as: Tuna, Flighty

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1984

Related Models

• Seiko 0739-825
• Seiko 6196-317
• Seiko 7175-156
• Seiko 6176-361
• Seiko 7050-319
• Seiko 6249-183
• Seiko 6356-370
• Seiko 3898-413
• Seiko 6186-479
• Seiko 0728-177
• Seiko 4412-159
• Seiko 5229-829