Seiko Cal. 5643 - 538

The Seiko 5643-538 represents an important milestone in Seiko's 1988 lineup. It features a Champagne dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-6b1738f5cfb5]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

26j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1988

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