Seiko Cal. 6641 - 456

The Seiko 6641-456 represents an important milestone in Seiko's 1972 lineup. It features a White dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-6f54424c9783]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

34j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1972

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