Seiko Cal. 6636 - 363

The Seiko 6636-363 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-803c45dc5300]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

30j

Frequency

28,800 bph

Power Reserve

71 hours

Year

1970

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