Seiko Cal. 6138 - 636

The Seiko 6138-636 represents an important milestone in Seiko's 1975 lineup. It features a Navy dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-8bd1043fa257]

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1975

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