Seiko Cal. 6639 - 977

The 6639-977 is a sought-after Solar piece from Seiko's golden era. It features a Burgundy dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-61b8a7c44f0b]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

13.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1965

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