Seiko Cal. 6181 - 648

The Seiko 6181-648 represents an important milestone in Seiko's 1966 lineup. Powered by the 6181 caliber with 26j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-1715e12c1e26]

Also known as: Turtle, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

Related Models

• Seiko 5682-328
• Seiko 3839-393
• Seiko 3810-197
• Seiko 6647-860
• Seiko 5216-559
• Seiko 6661-659
• Seiko 4448-517
• Seiko 6694-855
• Seiko 4477-833
• Seiko 5648-402
• Seiko 6125-384
• Seiko 5671-373