Seiko Cal. 4550 - 747

The Seiko 4550-747 represents an important milestone in Seiko's 1978 lineup. With its 21mm lug width and 15.9mm profile, it sits comfortably on most wrists. [seikata-wm-2b6bfe77fa2a]

Also known as: Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

15.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

Related Models

• Seiko 7058-620
• Seiko 4575-509
• Seiko 5637-787
• Seiko 6148-270
• Seiko 6131-109
• Seiko 5212-690
• Seiko 0751-604
• Seiko 6241-447
• Seiko 5678-402
• Seiko 5260-461
• Seiko 5661-191
• Seiko 7185-509