Seiko Cal. 6638 - 338

The 6638-338 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 170m of water resistance. [seikata-wm-a0b2929af8b9]

Also known as: Pogue, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

28j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1976

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