Seiko Cal. 5637 - 198

The 5637-198 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-2de4c3dc1d96]

Also known as: Tuna, Pogue

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

14.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

White

Jewels

22j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1997

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