Seiko Cal. 7057 - 539

This Hand-Winding model from 1985 features a 40mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 50m of water resistance. [seikata-wm-7b92a9d55475]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.1mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

35j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1985

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