Seiko Cal. 6683 - 644

The Seiko 6683-644 represents an important milestone in Seiko's 1978 lineup. It features a White dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-de979934a242]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1978

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