Seiko Cal. 6642 - 344

The Seiko 6642-344 represents an important milestone in Seiko's 1965 lineup. With its 19mm lug width and 11.3mm profile, it sits comfortably on most wrists. [seikata-wm-33353f8413fd]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Green

Jewels

28j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1965

Related Models

• Seiko 4539-758
• Seiko 0761-540
• Seiko 6256-269
• Seiko 6157-367
• Seiko 6361-381
• Seiko 4523-423
• Seiko 6648-760
• Seiko 6394-126
• Seiko 5266-876
• Seiko 6347-348
• Seiko 6663-598
• Seiko 6680-678