Seiko Cal. 6634 - 805

The Seiko 6634-805 represents an important milestone in Seiko's 1990 lineup. Powered by the 6634 caliber with 33j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-e1f91d1c5c6e]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

11.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

33j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

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