Seiko Cal. 5642 - 387

The Seiko 5642-387 represents an important milestone in Seiko's 1972 lineup. Powered by the 5642 caliber with 26j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-7197fc1bf83c]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Cream

Jewels

26j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1972

Related Models

• Seiko 6374-737
• Seiko 6316-766
• Seiko 6210-160
• Seiko 5296-806
• Seiko 5626-494
• Seiko 4523-671
• Seiko 5227-454
• Seiko 0773-766
• Seiko 5248-312
• Seiko 3820-897
• Seiko 5214-170
• Seiko 0724-579