Seiko Cal. 5658 - 847

The Seiko 5658-847 represents an important milestone in Seiko's 1965 lineup. Powered by the 5658 caliber with 30j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-47337aa570cc]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1965

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