Seiko Cal. 6615 - 256

Released in 1978, the Cal. 6615 with design code 256 was part of Seiko's domestic market collection. It features a Navy dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-017877be422a]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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