Seiko Cal. 0728 - 513

This Hand-Winding model from 1969 features a 46mm Two-Tone case. It features a Green dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-5773f9f51caf]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Green

Jewels

28j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1969

Related Models

• Seiko 6137-941
• Seiko 5279-800
• Seiko 4553-308
• Seiko 5638-375
• Seiko 6151-766
• Seiko 6125-143
• Seiko 6353-549
• Seiko 6692-723
• Seiko 6225-900
• Seiko 5286-201
• Seiko 7189-405
• Seiko 4558-936