Seiko Cal. 7181 - 642

The Seiko 7181-642 represents an important milestone in Seiko's 1971 lineup. Powered by the 7181 caliber with 26j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-0bfe13bf3680]

Also known as: Panda, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.1mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1971

Related Models

• Seiko 4581-455
• Seiko 6163-770
• Seiko 7017-489
• Seiko 0763-305
• Seiko 6219-699
• Seiko 3816-155
• Seiko 0724-416
• Seiko 4577-993
• Seiko 7161-597
• Seiko 6680-828
• Seiko 6283-119
• Seiko 6691-471