Seiko Cal. 4487 - 211

The 4487-211 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4487 caliber with 28j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-0c993e63e9dc]

Also known as: Samurai

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1978

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