Seiko Cal. 6231 - 522

This Hand-Winding model from 1977 features a 42mm Two-Tone case. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-b276cb2e06e2]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1977

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