Seiko Cal. 4553 - 728

This Quartz model from 1988 features a 37mm Two-Tone case. It features a Black dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-55a929139a55]

Also known as: Tuna, Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1988

Related Models

• Seiko 5691-980
• Seiko 5279-859
• Seiko 7036-839
• Seiko 6330-255
• Seiko 7129-247
• Seiko 6239-112
• Seiko 5255-218
• Seiko 6193-541
• Seiko 6122-122
• Seiko 4432-566
• Seiko 3857-525
• Seiko 7180-311