Seiko Cal. 5250 - 637

The Seiko 5250-637 represents an important milestone in Seiko's 1967 lineup. It features a Green dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-2de53f1959c2]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Green

Jewels

23j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1967

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