Seiko Cal. 6388 - 374

The 6388-374 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6388 caliber with 27j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-16651509b037]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

160m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1975

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