Seiko Cal. 5690 - 504

Released in 1968, the Cal. 5690 with design code 504 was part of Seiko's domestic market collection. With its 21mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-d0df6cf3eab9]

Also known as: Bellmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

38mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

36j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1968

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