Seiko Cal. 6366 - 490

The Seiko 6366-490 represents an important milestone in Seiko's 1966 lineup. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-452c1b76cf58]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

36j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1966

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