Seiko Cal. 6644 - 672

The 6644-672 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-e82b55a84078]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1972

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