Seiko Cal. 6644 - 437

This Spring Drive model from 1967 features a 43mm Two-Tone case. It features a Cream dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-b19af7ebe240]

Also known as: Samurai, Goldfeather

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Cream

Jewels

20j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1967

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