Seiko Cal. 5634 - 678

Released in 1978, the Cal. 5634 with design code 678 was part of Seiko's domestic market collection. Powered by the 5634 caliber with 24j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-7e19028acd4d]

Also known as: Panda, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

36,000 bph

Power Reserve

70 hours

Year

1978

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