Seiko Cal. 5230 - 540

Released in 1965, the Cal. 5230 with design code 540 was part of Seiko's domestic market collection. With its 18mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-6ba55cfd09b5]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1965

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