Seiko Cal. 6691 - 205

The 6691-205 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-f6e236191e8b]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

15.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Green

Jewels

19j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1982

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