Seiko Cal. 5615 - 679

Released in 1966, the Cal. 5615 with design code 679 was part of Seiko's domestic market collection. It features a Green dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-d28f1e7b244b]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

9.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1966

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