Seiko Cal. 0787 - 378

This Quartz model from 1977 features a 40mm Hardlex-Coated Steel case. Powered by the 0787 caliber with 28j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-4cea11a670ec]

Also known as: Tuna, Crown

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

28j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1977

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