Seiko Cal. 3887 - 672

The 3887-672 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3887 caliber with 21j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-9c68a5a23890]

Also known as: Shogun, Helmet

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1972

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