Seiko Cal. 6630 - 138

The 6630-138 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-5ca3dbff7d00]

Also known as: Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

13.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

33j

Frequency

28,800 bph

Power Reserve

70 hours

Year

1978

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