Seiko Cal. 5637 - 818

The Seiko 5637-818 represents an important milestone in Seiko's 1971 lineup. It features a Burgundy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-9d449a7c55dc]

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

200m

Dial Color

Burgundy

Jewels

17j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1971

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