Seiko Cal. 6642 - 855

Released in 1985, the Cal. 6642 with design code 855 was part of Seiko's domestic market collection. It features a Silver dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-115de0abf1cd]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1985

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