Seiko Cal. 6642 - 418

The Seiko 6642-418 represents an important milestone in Seiko's 1998 lineup. The Inner Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-b708ff898379]

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1998

Related Models

• Seiko 7144-156
• Seiko 0763-756
• Seiko 5695-825
• Seiko 0747-708
• Seiko 6623-646
• Seiko 6674-672
• Seiko 6110-599
• Seiko 0744-106
• Seiko 4434-601
• Seiko 6686-900
• Seiko 6139-352
• Seiko 5668-858