Seiko Cal. 7156 - 270

The Seiko 7156-270 represents an important milestone in Seiko's 1970 lineup. Powered by the 7156 caliber with 30j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-2b6d5e3d904e]

Also known as: Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1970

Related Models

• Seiko 6634-876
• Seiko 0728-722
• Seiko 4472-822
• Seiko 6223-238
• Seiko 3886-124
• Seiko 4412-334
• Seiko 4569-265
• Seiko 5225-775
• Seiko 7191-721
• Seiko 5210-412
• Seiko 3814-566
• Seiko 0780-836