Seiko Cal. 5243 - 641

The Seiko 5243-641 represents an important milestone in Seiko's 1996 lineup. Powered by the 5243 caliber with 36j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-f7cc511cc5ae]

Also known as: Helmet, Flighty

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

36j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1996

Related Models

• Seiko 6382-441
• Seiko 6283-942
• Seiko 6391-795
• Seiko 5265-668
• Seiko 6240-845
• Seiko 4424-766
• Seiko 5237-619
• Seiko 6146-205
• Seiko 7018-454
• Seiko 5273-124
• Seiko 6635-831
• Seiko 5619-800