Seiko Cal. 6366 - 448

This Spring Drive model from 1965 features a 43mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-8d01d24b4aad]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

13.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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