Seiko Cal. 0765 - 641

The Seiko 0765-641 represents an important milestone in Seiko's 1983 lineup. With its 21mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-e4eda460acd7]

Also known as: Sumo, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

30j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1983

Related Models

• Seiko 6620-112
• Seiko 4420-769
• Seiko 6273-530
• Seiko 6249-994
• Seiko 0755-479
• Seiko 6620-795
• Seiko 5647-339
• Seiko 6180-641
• Seiko 4536-288
• Seiko 3888-738
• Seiko 4512-620
• Seiko 0756-261