Seiko Cal. 4487 - 341

The Seiko 4487-341 represents an important milestone in Seiko's 1965 lineup. Powered by the 4487 caliber with 33j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-5d1e7be36af0]

Also known as: Bullhead, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Burgundy

Jewels

33j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1965

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