Seiko Cal. 4515 - 727

The 4515-727 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4515 caliber with 23j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-bc3ca37184e6]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Silver

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1987

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