Seiko Cal. 0727 - 800

The 0727-800 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0727 caliber with 24j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-662907589f5b]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

White

Jewels

24j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1978

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