Seiko Cal. 5278 - 520

The Seiko 5278-520 represents an important milestone in Seiko's 1965 lineup. It features a Navy dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-1311f6cbd322]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.1mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1965

Related Models

• Seiko 7175-441
• Seiko 4434-560
• Seiko 7041-168
• Seiko 7033-228
• Seiko 6332-152
• Seiko 6197-911
• Seiko 7195-606
• Seiko 5224-275
• Seiko 4587-902
• Seiko 5299-586
• Seiko 4498-281
• Seiko 6373-432