Seiko Cal. 4556 - 612

This Spring Drive model from 1970 features a 46mm Two-Tone case. Powered by the 4556 caliber with 32j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-94785eae13a2]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1970

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