Seiko Cal. 6691 - 370

Released in 1969, the Cal. 6691 with design code 370 was part of Seiko's domestic market collection. It features a White dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-0fd51cc6044d]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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