Seiko Cal. 7156 - 261

Released in 1978, the Cal. 7156 with design code 261 was part of Seiko's domestic market collection. The Coin-Edge bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-e2449acf5cb9]

Also known as: Sportsmatic, Arnie

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1978

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