Seiko Cal. 5640 - 151

Released in 1969, the Cal. 5640 with design code 151 was part of Seiko's domestic market collection. It features a Champagne dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-5483a8ec3edc]

Also known as: Shogun

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

180m

Dial Color

Champagne

Jewels

35j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1969

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