Seiko Cal. 0770 - 280

The 0770-280 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-382aef9db953]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

13.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1970

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