Seiko Cal. 4531 - 961

This Hand-Winding model from 1975 features a 34mm Two-Tone case. It features a Black dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-9b6f111a986a]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1975

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