Seiko Cal. 6642 - 356

The Seiko 6642-356 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-42a0e9c1e097]

Also known as: Monster, Navigator

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Green

Jewels

24j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1974

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