Seiko Cal. 6138 - 991

The Seiko 6138-991 represents an important milestone in Seiko's 1982 lineup. It features a Black dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-46d028ea013f]

Also known as: Turtle

Specifications

Movement

Solar

Case Material

Titanium

Case Width

37mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1982

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