Seiko Cal. 4550 - 920

The Seiko 4550-920 represents an important milestone in Seiko's 1972 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-2c0fa3fa9a2a]

Also known as: Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Burgundy

Jewels

21j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1972

Related Models

• Seiko 6615-890
• Seiko 5661-212
• Seiko 6680-366
• Seiko 7187-385
• Seiko 4464-106
• Seiko 6338-961
• Seiko 7050-430
• Seiko 6115-558
• Seiko 5226-202
• Seiko 5691-198
• Seiko 4420-415
• Seiko 6270-487