Seiko Cal. 6618 - 431

This Spring Drive model from 1990 features a 42mm Two-Tone case. With its 19mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-0030df5b9cb2]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1990

Related Models

• Seiko 7175-257
• Seiko 4572-805
• Seiko 5692-931
• Seiko 0781-910
• Seiko 3896-262
• Seiko 6193-788
• Seiko 5283-460
• Seiko 4564-331
• Seiko 5252-966
• Seiko 6614-939
• Seiko 6174-889
• Seiko 7175-730