Seiko Cal. 4440 - 901

This Spring Drive model from 1979 features a 46mm Two-Tone case. Powered by the 4440 caliber with 21j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-74d2796e6a47]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1979

Related Models

• Seiko 0766-892
• Seiko 7126-711
• Seiko 6690-961
• Seiko 0752-195
• Seiko 6678-343
• Seiko 6694-815
• Seiko 0779-219
• Seiko 6633-947
• Seiko 0735-497
• Seiko 4499-895
• Seiko 6171-259
• Seiko 5646-311