Seiko Cal. 4487 - 229

The Seiko 4487-229 represents an important milestone in Seiko's 1973 lineup. Powered by the 4487 caliber with 18j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-aa097a74b736]

Also known as: Turtle, Helmet

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

36mm

Case Thickness

8.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

170m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1973

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