Seiko Cal. 7177 - 278

The 7177-278 is a sought-after Automatic piece from Seiko's golden era. Powered by the 7177 caliber with 17j jewels beating at 36,000 bph, it delivers a 68 hours power reserve. [seikata-wm-afb19cc7133a]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1975

Related Models

• Seiko 5688-339
• Seiko 6323-452
• Seiko 4499-920
• Seiko 7159-616
• Seiko 4590-781
• Seiko 0742-438
• Seiko 0724-175
• Seiko 7090-108
• Seiko 7159-668
• Seiko 6620-675
• Seiko 0798-955
• Seiko 7178-337