Seiko Cal. 0729 - 387

The 0729-387 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0729 caliber with 21j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-9a29e7bd10e6]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Cream

Jewels

21j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1993

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