Seiko Cal. 4439 - 148

This Quartz model from 1986 features a 41mm Titanium case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-c280495ac2e4]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

41mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1986

Related Models

• Seiko 6112-671
• Seiko 6319-252
• Seiko 6368-860
• Seiko 7021-537
• Seiko 4432-899
• Seiko 4483-767
• Seiko 5681-597
• Seiko 6678-935
• Seiko 5238-788
• Seiko 4542-672
• Seiko 6321-330
• Seiko 7068-189