Seiko Cal. 5665 - 504

Released in 1965, the Cal. 5665 with design code 504 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-b86fa4ef51d8]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1965

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