Seiko Cal. 5615 - 624

This Spring Drive model from 1973 features a 40mm Two-Tone case. Powered by the 5615 caliber with 30j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-49232967025f]

Also known as: Bullhead, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

14.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

30j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1973

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