Seiko Cal. 0727 - 645

Released in 1970, the Cal. 0727 with design code 645 was part of Seiko's domestic market collection. With its 18mm lug width and 14.5mm profile, it sits comfortably on most wrists. [seikata-wm-7e5beda83ecb]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1970

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