Seiko Cal. 6638 - 360

The 6638-360 is a sought-after Solar piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-5dab9eb6bd14]

Also known as: Sumo, Shogun

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

80m

Dial Color

White

Jewels

30j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1998

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