Seiko Cal. 6638 - 257

This Hand-Winding model from 1994 features a 41mm PVD Black case. It features a Champagne dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-f0ba3f01be22]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Champagne

Jewels

35j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1994

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