Seiko Cal. 7178 - 475

The Seiko 7178-475 represents an important milestone in Seiko's 1977 lineup. Powered by the 7178 caliber with 19j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-d941f50f04a1]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1977

Related Models

• Seiko 5669-221
• Seiko 0741-927
• Seiko 5659-560
• Seiko 6279-606
• Seiko 5663-737
• Seiko 6649-321
• Seiko 4493-599
• Seiko 4422-453
• Seiko 6254-871
• Seiko 0788-843
• Seiko 6681-287
• Seiko 5683-418