Seiko Cal. 6677 - 764

The 6677-764 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-d9bc812a57be]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Green

Jewels

19j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1968

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