Seiko Cal. 6391 - 553

Released in 1976, the Cal. 6391 with design code 553 was part of Seiko's domestic market collection. With its 18mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-9f8a74af19cb]

Also known as: Panda, Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

36mm

Case Thickness

12.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1976

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