Seiko Cal. 6156 - 215

Released in 1977, the Cal. 6156 with design code 215 was part of Seiko's domestic market collection. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-6dfd5ab0943c]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.6mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Cream

Jewels

34j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1977

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