Seiko Cal. 7155 - 727

The 7155-727 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7155 caliber with 24j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-0cd8970f834f]

Also known as: Helmet, Flighty

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.8mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Green

Jewels

24j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1983

Related Models

• Seiko 6625-970
• Seiko 5669-380
• Seiko 5675-269
• Seiko 5259-247
• Seiko 4463-920
• Seiko 4572-761
• Seiko 4595-123
• Seiko 5264-171
• Seiko 0727-229
• Seiko 3810-565
• Seiko 6364-921
• Seiko 6198-784