Seiko Cal. 4555 - 621

The Seiko 4555-621 represents an important milestone in Seiko's 1985 lineup. Powered by the 4555 caliber with 29j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-38f1690e1470]

Also known as: Monster, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Burgundy

Jewels

29j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1985

Related Models

• Seiko 4485-208
• Seiko 6199-803
• Seiko 0731-580
• Seiko 6351-423
• Seiko 5677-405
• Seiko 7181-255
• Seiko 5222-321
• Seiko 6328-666
• Seiko 5237-441
• Seiko 4567-908
• Seiko 0740-201
• Seiko 3816-116